WO2006129221A2 - Procede et dispositif d'enregistrement de marques dans une couche d'informations d'un disque optique - Google Patents

Procede et dispositif d'enregistrement de marques dans une couche d'informations d'un disque optique Download PDF

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Publication number
WO2006129221A2
WO2006129221A2 PCT/IB2006/051604 IB2006051604W WO2006129221A2 WO 2006129221 A2 WO2006129221 A2 WO 2006129221A2 IB 2006051604 W IB2006051604 W IB 2006051604W WO 2006129221 A2 WO2006129221 A2 WO 2006129221A2
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WO
WIPO (PCT)
Prior art keywords
write
sequence
recording
optical disc
pulses
Prior art date
Application number
PCT/IB2006/051604
Other languages
English (en)
Other versions
WO2006129221A3 (fr
Inventor
Bas Feddes
Jacob G. Nijboer
Original Assignee
Koninklijke Philips Electronics N.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Priority to KR1020087000115A priority Critical patent/KR101306026B1/ko
Priority to US11/915,747 priority patent/US8004947B2/en
Priority to EA200702400A priority patent/EA012060B1/ru
Priority to CA002610151A priority patent/CA2610151A1/fr
Priority to JP2008514248A priority patent/JP4808251B2/ja
Priority to CN2006800194424A priority patent/CN101189665B/zh
Priority to EP06765695A priority patent/EP1891631A2/fr
Priority to BRPI0610942A priority patent/BRPI0610942A2/pt
Publication of WO2006129221A2 publication Critical patent/WO2006129221A2/fr
Publication of WO2006129221A3 publication Critical patent/WO2006129221A3/fr
Priority to NO20080015A priority patent/NO20080015L/no

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/006—Overwriting
    • G11B7/0062—Overwriting strategies, e.g. recording pulse sequences with erasing level used for phase-change media
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0045—Recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/006—Overwriting

Definitions

  • the present invention relates to a method of recording marks having a time length of nT onto an optical disc comprising an information layer by irradiating the information layer with a pulsed radiation beam, each mark being recorded by a sequence of m pulses, n being an integer larger than 1, T representing the length of one period of a reference clock, and m represents an integer larger than or equal to 1 and lower than or equal to n.
  • This invention also relates to a recording device for recording marks onto an optical disc capable of carrying out the said method.
  • This invention also relates to an optical disc suitable for cooperating with the recording device in carrying out the said method.
  • Rewritable media for example DVD+RW
  • the reversible recording process is based on the use of an information layer comprising a phase change material that is reversibly changeable between the amorphous and crystalline phase.
  • Amorphous marks are recorded within the crystalline matrix of the information layer, by irradiating the information layer with sequences of short radiation pulses, for example sequences of laser pulses. The radiation pulses melt the phase change material. If the subsequent cooling after turning off the radiation beam is rapid, the amorphous phase is frozen. If the subsequent cooling after turning off the radiation beam is slow, it allows recrystallization and induces a crystalline phase.
  • phase change layer allows information to be recorded and erased by modulating the power of the radiation beam between a write power level and an erase level.
  • the readout is performed by detecting differences in optical properties between the amorphous and crystalline phases of the phase change layer thereby reproducing the recording signals. It is desirable that the number of times the media can be direct overwritten
  • DOW before media degradation takes place is as high as possible.
  • the jitter shall stay below 10% for any number of direct overwrites (500).
  • the problem is that during the repeated process of recording, the media, comprising a stack of layered materials, the phase change layer being one of the layers of such a stack, slowly degrades, often due to thermal inter-diffusion of layers. This degradation process limits the maximum number of achievable direct overwrites (DOW).
  • a known solution for increasing the number of achievable direct overwrites (DOW) is by using capping layers of stable materials, e.g.
  • Amorphous marks are written within the crystalline matrix of the information layer by irradiating the information layer with sequences of short radiation pulses, known as write pulses. As the write pulses are of comparable lengths, one expects that the highest temperatures within the layer stack to be reached during recording of the longest marks, as heat accumulates due to the repetitive pulses.
  • the object of the invention is achieved by recording marks onto an optical disc according to a method as claimed in claim 1.
  • the claimed method is a consequence of the insight that modifying the write strategy so that at least the longest write pulse is replaced by two shorter write pulses can improve very significantly the number of achievable direct overwrites (DOW).
  • the insight is based on the unexpected finding that, opposite to the expectation that recording marks having the longest time length would be the most harmful to the information layer, the most relevant factor in determining the number of achievable direct overwrites (DOW) is not the length of the mark, but the time length of longest write pulse. Reducing this time length by replacing the longest write pulse with two shorter write pulses improves very significantly the number of achievable direct overwrites (DOW).
  • mark 13 is recorded by means of a relatively long write pulse.
  • the temperature of the material stack in the spot where the radiation beam is focused increases rapidly when the first write pulse from a sequence is present. After the first write pulse is ended, the temperature starts to drops rapidly as function of time during the cooling period due to heat diffusion outside the spot.
  • the temperature at the end of the cooling period is higher than the temperature before the start of the sequence, but much lower than the peak temperature reached at the end of the write pulse.
  • the second write pulse When the second write pulse is present, the temperature starts to increase rapidly again and drops rapidly as the write pulse ends.
  • the average temperature of the stack increases.
  • the highest temperature in the stack is very different from the average temperature and most probably is reached at the end of the longest write pulse. Consequently the destruction of the materials stack by the recording of marks can be limited by a modifying the recording method according to claim 1. If two short write pulses separated by a cooling period are used to replace the longest individual radiation pulse, the number of achievable direct overwrites (DOW) significantly increases. An advantageous embodiment is obtained by the measures of claim 2.
  • modifying the write strategy according to the measures of claim 2 leads to a significant increase in the number of achievable direct overwrites (DOW).
  • An advantageous embodiment is obtained by the measures of claim 3.
  • An increase in the number of achievable direct overwrites (DOW) is obtained by recording marks 13 and 14, having lengths of 3 T and 4T, respectively, by a sequence comprising two write pulses.
  • each sequence comprising an write pulse longer than the median length of the write pulses comprised in the sequence is modified such that the longer write pulse is replaced by two write pulses.
  • each sequence comprising a write pulse longer by at least 5% than the median length of the write pulses comprised in the sequence is modified such that the longer write pulse is replaced by two write pulses.
  • sequence of write pulses is followed by an erase pulse, the power of the erase pulse being lower than that of a write pulse.
  • marks of different time lengths may be recorded by sequences comprising the same number of pulses. For example, when ⁇ is set to 2, marks 13 and 14 are each recorded by a sequence comprising two pulses. Because of this, additional fine-tuning of the sequence of radiation pulses may be required.
  • the position of at least one radiation pulse in the sequence is set in dependence on n.
  • the power of at least one of the radiation pulses is set in dependence on n.
  • the invention also includes an optical disc according to claim 10.
  • An optical disc comprising stored information, the information being preferably pre-recorded onto the optical disc during the manufacturing process, the information arranged such that when read by a recording apparatus it enables the recording apparatus to record marks onto the optical disc according to a method of any of the previous claims.
  • the invention also includes an optical disc drive according to claim 10.
  • Fig. 1 shows diagrams representing a clock signal, a 5T mark to be recorded, a known method for recording the said mark and a method for recording the said mark according to the invention.
  • Fig. 2 illustrates a state of art method of recording marks known under the name N/2 strategy of recording marks, for marks of lengths 3T to 14 T.
  • Fig. 3 illustrates a method of recording marks according to a first embodiment of the invention.
  • Fig. 4 illustrates a method of recording marks according to a second embodiment of the invention.
  • Fig. 5 illustrates the dependence of the measured jitter on the number of direct overwrites (DOW) when marks are recording according to the state of art N/2 or 2T write strategy when: only 13 marks are recorded (open squares); only 14 marks are recorded (lull triangles); - only 18 marks are recorded (open circles); only 114 marks are recorded (full squares); representative DVD data is recorded (full circles).
  • DOW direct overwrites
  • Fig. 6 illustrates the difference in the measured jitter as function of the number of direct overwrites (DOW) when 13 marks are recording according either to the state of art N/2 strategy (lull circles) or to a write strategy according to the present invention (open squares).
  • DOW direct overwrites
  • FIG. 7 shows an optical disc drive suited for using of the invention.
  • Figure Ia shows a clock signal 10 of a reference clock having a 'high' part 101 and a 'low' part 102. A combination of one 'high' part and one 'low' part together from one period (T) of this reference clock.
  • Figure Ib shows a signal 11 to be recorded in the information layer of the record carrier. A 'high' part 111 in this signal 11 is recorded in the information layer as a mark having a physical length corresponding to the time duration of this 'high' part. Consequently, the length of a mark is often expressed in the number of corresponding reference clock periods T.
  • the length of the mark to be recorded, and therefore the 'high' part of the signal 111 is 5T.
  • This mark is also referred in the art as an 15 mark.
  • the signal 11 to be recorded is recorded in an information layer having a phase reversibly changeable between a crystalline phase and an amorphous phase by irradiating the information layer with a radiation beam.
  • the radiation beam is generated by a radiation source that is controlled by a control signal 12, 13.
  • the power level of the control signal corresponds to the power of the radiation beam generated by the radiation source. Consequently the control signal corresponds to a sequence of write pulses used in recording a mark.
  • Figure Ic illustrates a pulsed control signal for recording a mark of length 5T (15), according to a prior art method known as N/2 or 2T write strategy.
  • the sequence of write pulses comprises two radiation pulses in the control sequence having a write power level 121.
  • the two write pulses from the sequence have different time lengths, the second write pulse being longer than the first.
  • the write pulses are separated by cooling periods 125.
  • the radiation beam may have a cooling power level 122, which is lower than the write power level.
  • the control signal Before and after the write pulses the control signal has an erase power level 123 sufficient for erasing previously recorded marks. The power of the erase signal is higher than that during the cooling periods and lower than that of the write pulses. Further details of this known 2T method will be discussed later with reference to figure 2.
  • Figure Id illustrates a pulsed control signal 14 used for recording the same 5T mark in a method according to the invention.
  • the sequence of write pulses comprises three write pulses instead of the two write pulses use in the known 2T write strategy. Modification of the known method is a consequence of the fact that the second write pulse from the state of art sequence of radiation pulses as illustrated in fig Ic is much longer than the first and therefore replaced by two shorter write pulses. Consequently the highest temperature that is reached in the material stack during recording the 5T mark is lower for the method according to the invention.
  • Fig. 2 further illustrates the state of art method of recording marks known as N/2 or 2T write strategy. In Fig. 2 the sequences of write pulses used in recording marks of lengths 3 T to 14T is illustrated.
  • This range of mark lengths corresponds to the EFM+ encoding strategy, used in recording DVD media.
  • other encoding strategies are known in the art, and the corresponding range of mark length may vary.
  • marks of lengths 2T to 9T are recorded.
  • a mark of length n is recorded by a sequence of write pulses comprising Floor(n/2) write pulses, wherein Floor(n/2) describes the largest integer smaller that n/2.
  • mark 13 of length 3T is recorded by a sequence comprising a single write pulse.
  • Said N/2 write strategy is a preferred write strategy for high-speed rewritable recording, for example in the case of 8x DVD+RW media.
  • the time length of a write pulse comprised in a sequence, the cooling periods between two write pulses and the total length of a sequence of write pulses may vary.
  • Fig. 2 illustrates a representative example with respect to said time lengths.
  • the longest individual write pulse corresponds to the single write pulse used in recording the 13 mark.
  • the last write pulse from the sequence used in recording marks of uneven length (15, 17, 19, Il 1 and 113) is sometimes longer than the rest of the write pulses within the corresponding sequence but shorter than the single write pulse used in recording the 13 mark.
  • N/2 or 2T write strategy as exemplified here is a particular embodiment of a more general strategy, known under the name N/ ⁇ write strategy.
  • a mark of length N is written by a sequence of Floor(N/ ⁇ ) write pulses, wherein Floor(N/ ⁇ ) is the largest integer smaller than N/ ⁇ .
  • a method of recording marks according to a first embodiment of the invention is illustrated in Fig. 3. Comparative to the state of art method as illustrated in Fig. 2, in the method according to the invention the smallest mark (13), whose corresponding sequence of write pulse comprises the longest individual write pulse from all the sequence, is recorded by means of a sequence comprising two write pulses. The sequences used in recording marks of other lengths remain similar to the state of art method.
  • This modification of the write strategy is based on a new, unexpected insight that the longest individual write pulse is the most harmful to the stack of materials.
  • the method of recording marks according to the invention makes recording these marks less damaging, thus contributing to increasing the number of achievable direct overwrites (DOW) significantly. This new insight will be further discussed later with reference to figures 5 and 6. While the specific embodiment has been illustrated for clarity with respect to the N/2 or 2T strategy, the teachings of the invention are applicable to any write strategy.
  • FIG. 4 A method of recording marks according to a second embodiment of the invention is illustrated in Fig. 4. Comparative to the first embodiment of the invention, not only the mark whose corresponding sequence comprises the longest write pulse from all sequences is modified as described hereinbefore, but each sequence comprising a write pulse that is longer that the median length of the write pulses in the said sequence is replaced by two shorter write pulses.
  • the sequences of pulses used in recording marks of uneven length (15, 17, 19, Il 1 and 113) are modified accordingly.
  • the last write pulse from the corresponding sequences is replaced with two write pulses.
  • the number of write pulses comprised in a sequence is given by Ceiling(n/m), wherein Ceiling(n/m) defines the smallest integer that is larger than n/m.
  • the lengths of individual write pulses and the cooling periods between two write pulses may vary within a sequence or within sequences used for marks of different length.
  • the first write pulse in the sequence is longer that the subsequent write pulses (43,44) and the cooling periods are different.
  • the cooling periods may vary in between marks of different length, for example the cooling period between write pulses 43 and 44,comprised in the sequence used in recording to mark 15, is different from the cooling period between write pulses 45 and 46, comprised in the sequence used in recording to mark 17.
  • the sequence of write pulses may be followed by an erase pulse, the power of the erase pulse being lower than that of a write pulse.
  • the position of the last write pulse within a sequence for example pulse 41 for mark 13 or pulse 44 for mark 15, is set in dependence on the time length of the mark to be written.
  • the power of at least one pulse may be set in dependence on the time length of the mark (n).
  • the threshold in deciding whether an individual write pulse is much larger than the median length of the write pulses within a sequence so that it is preferably replaced by two write pulses is set to 5% of the median time length of the write pulse comprised in the sequence.
  • Fig. 5 illustrates the dependence of the measured jitter of data recorded onto an optical disc as function on the number of direct overwrites (DOW) when marks of a single length are recording according to the state of art N/2 strategy, in the specific case when: only 13 marks are recorded (open squares); - only 14 marks are recorded (full triangles); only 18 marks are recorded (open circles); only 114 marks are recorded (full squares); representative DVD data is recorded (full circles).
  • DOW direct overwrites
  • the jitter is due to variation in the length of the marks and is the most important source of noise for information readout, therefore is a measure for the quality of the written data.
  • the DVD standard specifies that the maximum allowed value for the jitter is 9%.
  • the stack shows a faster degradation when longer marks are recorded, indicating a negative influence of the higher average temperatures that arise in the longer pulses. This trend confirms the expectation that recording longer marks is more damaging to the information layer.
  • recording the shortest mark 13 is the most damaging, showing the fastest increase in the jitter as function of the number of direct overwrites (DOW).
  • the sequence used in recording mark 13 comprises the longest individual write pulse. Consequently, the peak temperature that is reached during the recording of such an 13 mark is higher than the maximum temperature that is reached during the writing process of a longer mark, leading to the strongest degradation of the material stack.
  • Fig. 6 illustrates the difference in the measured jitter as function of the number of direct overwrites (DOW) when 13 marks are recording according either to the state of art N/2 strategy (lull circles) or to a write strategy according to the present invention (open squares).
  • DOW direct overwrites
  • the jitter remains more stable when the a write strategy according to the invention is used: the number of achievable direct overwrites (DOW) greatly improves by a factor of three from 200 to 600, only by modifying the sequence comprising the longest individual write pulse, in our particular example mark 13. Based on this insight, it is desirable to choose the new duration of the write pulse comprised in the sequence used in recording mark 13 equal or shorter than the duration of the write pulses (the so-called multi-pulses) comprised in the other sequences, in order to limit the peak temperature during recording of 13 marks.
  • DOW direct overwrites
  • the recording apparatus 70 comprise a recording medium receiving means 704 for receiving a removable recording media 701.
  • the recording media 701 may be an optical disc of rewritable type, such as DVD+RW or BD-RE.
  • the recording media 701 is rotationally driven by rotation means 704.
  • An optical pick-up unit 706, movable in a radial direction of the recording media, is used for recording marks along a spiral track 703 on the recording media, by employing a radiation beam 702.
  • the recording media 701 is provided with an information layer comprising a suitable phase change material which has different optical properties in the crystalline or amorphous states.
  • the radiation beam 702 is modulated by the recording means 707 according to the digital information signals to be recorded.
  • This digital information signal have been suitably encoded with encoding means 709, employing know modulation schemes like EFM or EFM+ and CIRC error encoding.
  • Input means 711 which may comprise A/D conversion means and/or specific interface circuitry, may receive analog and/or digital information.
  • address finding means 713 are provided to determine the address information present on the recording media 701.
  • Digital information signals on the recorded media may be read by the same pick-up unit 706 by suitable reading means 708.
  • decoding means 710 to performs decoding and CIRC error correction according to known schemes.
  • the decoded and corrected signals are outputted, via outputting means 712, which may comprise D/A means and/or suitable interface circuitry, digital and/or analog information signals. All units of the recording apparatus are controlled by the controlling unit 714.
  • the controlling unit 714 may comprise a processing unit which operates according to a specific program loaded in memory means, in order to perform the method according to the invention.
  • the controlling unit 714 is responsible for generating the control signal that is used by the recording means 707 and the optical pick-up unit 706 in generating the modulated radiation beam 702.
  • Optical disc of rewritable type comprise am information zone, where user data is recorded in a continuous spiral track.
  • the track shows periodic variations from a perfect spiral known under the name wobbles, which a reading/recording apparatus uses to generate a clock signal.
  • Several pieces of information may be pre-recorded on the optical disc during the manufacturing process.
  • said information may be stored by means of phase modulating the wobble of the tracks (Address- in-Pregroove - ADIP).
  • Said information may comprise information referring to the allowed write strategies and physical parameters to be used in recording the optical disc.
  • an optical disc comprises, preferably pre-recorded during manufacturing, information enabling a recording apparatus to record marks onto the optical disc according to a method of the invention as described hereinbefore.
  • Such information may comprise any of the following and/or combinations thereof: the number of pulses to be used in recording a mark of length n, for example, in a preferred embodiment given by the formula Ceiling(n/ ⁇ ), where ⁇ is an integer number larger than 2; the maximum width of an write pulse from a sequence of pulses used in recording a mark of a given length.
  • the invention may be implemented by means of hardware comprising several distinct elements and by means of software.
  • a system/device/apparatus claim enumerating several means several of these means may be embodied by one and the same item of hardware or software.
  • the mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measured cannot be used to advantage.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

L'invention concerne un procédé d'enregistrement de marques sur un disque optique, le disque optique comprenant une couche d'informations, par irradiation de la couche d'informations au moyen d'un faisceau de rayonnement pulsé, une marque (I3..I14) présentant une longueur de temps de nT, n représentant un entier supérieur à un et T représentant la longueur d'une période d'une horloge de référence, étant enregistrée par une séquence comprenant m impulsions d'écriture séparées par des périodes de refroidissement, les impulsions d'écriture pouvant présenter des longueurs de temps différentes, les impulsions d'écriture comprises dans les séquences correspondant à des marques de longueurs de temps différentes pouvant présenter des longueurs différentes, m étant un nombre entier donné par un plancher (n/a), le plancher(n/a) définissant l'entier le plus grand inférieur à n/a, a étant un nombre entier supérieur ou égal à 2. Le procédé est caractérisé par la modification d'au moins la séquence comprenant l'impulsion d'écriture la plus longue de sorte que l'impulsion d'écriture la plus longue est remplacée par deux impulsions d'écriture.
PCT/IB2006/051604 2005-06-03 2006-05-19 Procede et dispositif d'enregistrement de marques dans une couche d'informations d'un disque optique WO2006129221A2 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
KR1020087000115A KR101306026B1 (ko) 2005-06-03 2006-05-19 광 디스크의 정보층에 마크들을 기록하는 방법 및 장치
US11/915,747 US8004947B2 (en) 2005-06-03 2006-05-19 Method and device for recording marks in an information layer of an optical disc
EA200702400A EA012060B1 (ru) 2005-06-03 2006-05-19 Способ и устройство для записи меток в информационный слой оптического диска
CA002610151A CA2610151A1 (fr) 2005-06-03 2006-05-19 Procede et dispositif d'enregistrement de marques dans une couche d'informations d'un disque optique
JP2008514248A JP4808251B2 (ja) 2005-06-03 2006-05-19 光ディスクの情報層にマークを記録するための方法及び装置
CN2006800194424A CN101189665B (zh) 2005-06-03 2006-05-19 用于在光盘的信息层中记录标记的方法和设备
EP06765695A EP1891631A2 (fr) 2005-06-03 2006-05-19 Procede et dispositif d'enregistrement de marques dans une couche d'informations d'un disque optique
BRPI0610942A BRPI0610942A2 (pt) 2005-06-03 2006-05-19 método de gravar marcas em um disco óptico, aparelho de gravação e disco óptico
NO20080015A NO20080015L (no) 2005-06-03 2008-01-02 Fremgangsmate og anordning for registrering av markeringer i et informasjonslag i en optisk plate

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05104872.6 2005-06-03
EP05104872 2005-06-03

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WO2006129221A2 true WO2006129221A2 (fr) 2006-12-07
WO2006129221A3 WO2006129221A3 (fr) 2007-10-11

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US (1) US8004947B2 (fr)
EP (1) EP1891631A2 (fr)
JP (1) JP4808251B2 (fr)
KR (1) KR101306026B1 (fr)
CN (1) CN101189665B (fr)
AR (1) AR054466A1 (fr)
BR (1) BRPI0610942A2 (fr)
CA (1) CA2610151A1 (fr)
EA (1) EA012060B1 (fr)
MY (1) MY147429A (fr)
NO (1) NO20080015L (fr)
TW (1) TWI404053B (fr)
WO (1) WO2006129221A2 (fr)

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CN101189665A (zh) 2008-05-28
NO20080015L (no) 2008-01-02
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EP1891631A2 (fr) 2008-02-27
AR054466A1 (es) 2007-06-27
EA012060B1 (ru) 2009-08-28
KR20080026155A (ko) 2008-03-24
CN101189665B (zh) 2012-09-05
JP4808251B2 (ja) 2011-11-02
WO2006129221A3 (fr) 2007-10-11
US8004947B2 (en) 2011-08-23
CA2610151A1 (fr) 2006-12-07
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JP2008542965A (ja) 2008-11-27
MY147429A (en) 2012-12-14

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